There is no general public report for a certain "HDB accrued curiosity 90 27." This is probably going an inside reference amount or address. Accrued desire is usually a important part of HDB flat ownership, specifically for house owners who utilised their CPF Regular Account (OA) to finance their property. When you offer your HDB flat, it's essential to refund the principal number of CPF utilized for the downpayment, grants, and month-to-month installments, together with the accrued fascination, back into your CPF account. This desire is the quantity your CPF financial savings would've acquired if they had remained in the OA, calculated with the prevailing CPF OA interest here level (at the moment 2.five% for each annum) and compounded annually. The refund is obligatory, and It is deducted within the income proceeds. You are able to Look at the precise quantity of CPF applied and accrued curiosity on the CPF Internet site's "House Possession" dashboard by logging in along with your Singpass.